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st: aflogit from LR

From   Marc Campo <>
Subject   st: aflogit from LR
Date   Tue, 31 Oct 2006 08:44:31 -0800 (PST)

I am looking at a series of ordinal indep variables
individually while adjusting for background factors
with logistic regression.  I am entering these
varaibles as continuous as opposed to dummy coding.   

I want to use AFLOGIT for attributable fractions.  I
am not sure how this works with a continuous indep
variable however.  My vars are coded from 1-4 or 1-5. 
1 in each case is the lowest category.  The AF
instructions state to make the reference cat your non
exposure category, so I have used 1.  Is the result
the AF for all other categories vs. 1 in that case?  
That's not what I want.  But with so few categories, I
can't just take the middle value either. If it isn't
just 1 vs. all others, then my results should be fine.

Any help is appreciated.
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